Put in the new headunit. I'm sure some of you will probably think an aftermarket screen/dvd player looks tacky but it was a hand-me-down from a friend and free parts are free parts, sounds way better than stock.
Map sensor should come by Friday and then it's time to look for new springs. Would ideally like to get new coils all around so I can lower the whole car but right now my main concern is just fixing that rear.